Review on 🔧 MITZONE Aluminum Valve Cover Upgrade Kit w/Gasket & Bolts for 1998-08/2002 BMW Z3 323i 325i 328i 330i 525i 528i 530i X5 M52/M54 2.5L 2.8L 3.0L, Part # 11121432928 by Stephen Lunn

It's fine if you can't afford a nicer aftermarket finish, but I think there are better options . Be careful as one of the nuts I received wasn't even threaded, it could have ruined the bolt if I hadn't checked. They didn't include the 4 center nuts with the ground strap posts so I had extras to make it work. The fit is 95% accurate and hasn't leaked in weeks. I didn't want an old used cap and couldn't justify spending over $300 on a better aftermarket cap. This did the job and no more CEL. At least it was cheap and came with a gasket. I wouldn't trust their aluminum "upgrade".